Search results for " video"
showing 10 items of 324 documents
A comprehensive survey of multi-view video summarization
2021
[EN] There has been an exponential growth in the amount of visual data on a daily basis acquired from single or multi-view surveillance camera networks. This massive amount of data requires efficient mechanisms such as video summarization to ensure that only significant data are reported and the redundancy is reduced. Multi-view video summarization (MVS) is a less redundant and more concise way of providing information from the video content of all the cameras in the form of either keyframes or video segments. This paper presents an overview of the existing strategies proposed for MVS, including their advantages and drawbacks. Our survey covers the genericsteps in MVS, such as the pre-proce…
Estimation techniques to measure subjective quality on live video streaming in Cloud Mobile Media services
2018
Abstract The adoption of smart phones, the increased access to mobile broadband networks and the availability of public cloud infrastructures are aligning to the next generation of truly ubiquitous multimedia services, known as Cloud Mobile Media (CMM) services offering mobile video. Nevertheless, due to an inherit higher and variable end to end delay mainly as a result of the virtualization process, new challenges appear. One challenge is given by live video streaming applications when trying to keep a good Quality of Experience of the delivered video, measured in terms of a subjective video quality metric, named Mean Opinion Score (MOS). Our goal is to estimate and predict this subjective…
Developments and trends in learning with instructional video
2018
" This special issue provides an overview of some of the main topics addressed in contemporary research on learning with instructional video. The aim of the contributing papers is to take the field of learning with instructional video a step further so as to better understand the circumstances under which instructional videos do and do not improve learning and how instructional videos can be more optimally designed to support learning."
Toward an Integrated System for Surveillance and Behaviour Analysis of Groups and People
2013
Security and INTelligence SYStem is an Italian research project which aims to create an integrated system for the analysis of multi-modal data sources (text, images, video, audio), to assist operators in homeland security applications. Within this project the Scientific Research Unit of the University of Palermo is responsible of the image and video analysis activity. The SRU of Palermo developed a web service based architecture that provides image and video analysis capabilities to the integrated analysis system. The developed architecture uses both state of the art techniques, adapted to cope with the particular problem at hand, and new algorithms to provide the following services: image …
Using Factor Analysis Techniques to Find Out Objective Video Quality Metrics for Live Video Streaming over Cloud Mobile Media Services
2016
The increased adoption of smartphones, the access to mobile broadband networks and the availability of public Clouds allow new multimedia services, called Cloud Mobile Media Services. Under this new architecture the proliferation of live video streaming applications and the Quality of Experience (QoE) given by the final user are an issue, due to the higher and variable delay, as result of the virtualization methods used in the Clouds. Thus in this paradigm new challenges appear related to keep and estimate a good QoE in terms of a standarized subjective video quality called Mean Opinion Score (MOS). In this paper we analyze different approaches based on Factor Analysis techniques to estimat…
Teledu: Transmedia Learning Ecosystem for People at Risk of Exclusion
2021
The TELEDU tele-education ecosystem, integrated by software and hardware components, allows the use of Web resources through Interactive Digital TV (iDTV) without the need to be continuously connected. It works with any existing digital TV standard and is especially useful for users who do not have broadband, being a very effective solution in places where there is a digital divide. The user must have, at least, a cell phone with 3G connection and any of these three options: Digital Terrestrial TV (DTT), Satellite TV or Cable TV. The conception of TELEDU is based on the premise that the software will offer a friendly interaction. Based on this, an interoperable, open and scalable environmen…
La mente in gioco. Percorsi didattici tra Neuroeducation e Video Education
2015
Il gioco svolge una funzione preziosa in tutte le fasi della vita, in quanto fa emergere le peculiari eccellenze personali di ciascuno. Il libro di Giuseppa Compagno e di Giuseppa Cappuccio indaga la dimensione educativa del gioco a partire da due dall'ambito della Neuroeducation e quello della Video education rispetto a due distinti angoli visuali: il mondo dei videogame con il comune intento di porre in risalto le potenzialità della pratica ludica e le possibili applicazioni metodologiche dell’utilizzo del gioco in campo pedagogico-didattico. Il libro fornisce non solo alcuni spunti utili ad una ricognizione sul gioco nella prospettiva brain-based e nell’ambito della Video Education ma pr…
Use of intraoperative video endoscopy during anterior inferior hyoid suspension surgery
2007
Analysing participatory video through the capability approach. A case study in Quart de Poblet (Valencia, Spain)
2017
The aim of this paper is to analyse participatory video as a participatory action research method through the lenses of the capability approach. In order to do this, we used a participatory video experience that took place in the municipality of Quart de Poblet (Valencia, Spain) from February to March 2014. The participants were 11 young people between 16 and 24 years of age, severely affected by the economic crisis that has hit Spain in recent years. To develop our analysis, we introduced the participatory video as a technique and a process within the participatory action research methods. Then, we analysed the participatory process to verify the extent to which it had contributed to expan…
Nuevas fórmulas publicitarias: los advergames como herramienta de las comunicaciones de marketing
2012
Los advergames son videojuegos orientados a la comunicación publicitaria. Su naturaleza de mensaje híbrido, al combinar contenido publicitario y contenido de entretenimiento, aporta interesantes posibilidades al desarrollo de comunicaciones de marketing en un entorno mediático en el que la publicidad tradicional ha ido perdiendo eficacia. El presente artículo delimita el concepto de advergame, analizando las diferentes tipologías existentes y sus efectos sobre diversos objetivos de marketing y de comunicación. Asimismo, se apuntan algunas recomendaciones a la hora de desarrollar comunicaciones de marketing mediante advergames, así como las cuestiones éticas y morales que deben considerarse